What is the significance of the limiting reagent in a reaction?

Limiting Reactant - The reaction in a chemical reaction that limits the amount of product that can be formed. The reaction will stop when all of the limiting reactant is consumed. that's my answer that I got from https://www.chem.tamu.edu/class/majors/tutorialnotefiles/limiting.htm <-- here

"electrical energy" transforms to "thermal energy".hope my answer has you : )